refactor: remove credit cost calculations and related UI elements from canvas node panels

web/src/components/canvas/canvas-node-prompt-panel.tsx

@@ -4,7 +4,6 @@ import { Button } from "antd";
 
 import { ModelPicker } from "@/components/model-picker";
 import { defaultConfig, useConfigStore, useEffectiveConfig, type AiConfig } from "@/stores/use-config-store";
-import { CreditSymbol, requestCreditCost } from "@/constant/credits";
 import { canvasThemes } from "@/lib/canvas-theme";
 import { useThemeStore } from "@/stores/use-theme-store";
 import { CanvasImageSettingsPopover } from "./canvas-image-settings-popover";
@@ -38,7 +37,6 @@ export function CanvasNodePromptPanel({ node, isRunning, onPromptChange, onConfi
     const hasImageContent = node.type === CanvasNodeType.Image && Boolean(node.metadata?.content);
     const isEditingExistingContent = hasTextContent || hasImageContent;
     const [prompt, setPrompt] = useState(isEditingExistingContent ? "" : node.metadata?.prompt || "");
-    const credits = requestCreditCost({ channelMode: config.channelMode, model: config.model, count: mode === "image" ? config.count : 1 });
 
     useEffect(() => {
         setPrompt(isEditingExistingContent ? "" : node.metadata?.prompt || "");
@@ -119,13 +117,7 @@ export function CanvasNodePromptPanel({ node, isRunning, onPromptChange, onConfi
                                 <span className="text-xs font-medium">停止</span>
                             </>
                         ) : (
-                            <>
-                                <span className="inline-flex items-center gap-1 text-xs font-medium tabular-nums">
-                                    <CreditSymbol />
-                                    {credits.toLocaleString()}
-                                </span>
-                                <ArrowUp className="size-4" />
-                            </>
+                            <ArrowUp className="size-4" />
                         )}
                     </span>
                 </Button>